Mechanical device for transmitting and regulating speed



C. SOLLIMA.

" MECHANICAL DEVICE FOR TRANSMITTING AND REGULATING SPEED.

AIPPLICATION FILED AUG.22, 1918.

"1,33 ,542, Patented Apr 13; 1920.

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IECHANICAL DEVICE FOR TRANSMITTTNG ANDREGULATINGSPEED:

Specification of Letters latent I Patented Apr. 13, 1920.

- Application filed August 22, 1918. Serial No. 251,084.

To all whom it may concern: J I

Be; it knownthat' I, CARMELO 'SOLLIMA citizen of the Republic of France, and resident ofthe city of Paris, have invented a certain new and useful Mechanical Device for Transmitting and Regulating Speed, of which the following is a specification.

The invention relates-to a new article of manufacture for transmitting and regulating speed in machinery where an increase or decrease of speed is essential, and is ac complished without the use of gears of any description whatever, thus making it adaptable for motor cars, etc., all of which will be fully described hereinafter. The invention consists of naves or' hubs provided with a series of radially arranged crease speed is required.

arms which may be integral or fixed thereto at an inclined angle to the axis of the aforesaid hub, the latter. of which are slidably mounted in pairs upon a rotatable shaft. Said hubs are operated by levers or otherwise. The hubs when operated upon may move toward each other or vice versa depending, of course, whethenincrease or de- In the drawings, Figure 1 represents v the hubs showing the manner in which they tion.

may be coupled with means operated by hand levers. c I

Fig. 4 is a diagrammatic view which illustrates the manner in which the radially arranged arms of the hubs cross each other when forming the angular gully or trough through which the belt 'travels when in ac- Fig. 5 represents an end view of the hubs showing'the keyway or feather channel of the hubs. I

Similar letters refer to similar parts throughout the drawings in which the frame a is provided with bearings 6 adapted to receive the journals of the rotatable shafts c 0 upon each of which is'mounted a pair of hubs d d adaptedto have a rotatable and plan view showing some of the radially arslidable movement. The hubs d d are heldin alinement parallel 'withthe axis of the rotatable shaft 0 0 by means ofthe keys or feathers e e'. The ends of the'hubs d 01' facing each other are provided with the radially arranged inclined arms f which path of the belt working surface.

slidable sleeve 9 as shown in detail Fig.- 3. Each of the sleeves g engage with the ends of the swing levers it, having their fulcr'ums located centrally between their ends, said levers it connected one with the other by an obliquely arranged cross-bar 71 having its ends loosely connected. to their respective levers at o o. vThe end of one of the swinging levers k is extended and is connected with the operating rod is by the linli Z. I

The principal characteristic of the slidable hubs is that they are grouped by pairs and provided withradially arranged arms inclined at an angle to the axis of the shafts or axles and crossing one another in such manner that their extremities form a trough or gully adaptable to receive the belt or cable m connecting one pair of the slidable hubs with the other. The purpose being to produce, through drawing the hubs clser together or setting them farther apart, a variation in circumferential bearing, that is to say, that if the diameter of the lly or trough formed by the crossing inc ined arms of one group of inclined arms should increase the other will decrease proportionally,.thus maintaining the tension of the belt m at all times;

This system of regulation dispenses with gearings of all description and insures a 6b Each of the hubsd d are swiveled to a It will be obvious that when the axle c is united with the motor and the axle cto the wheels of the car, the continuous belt will cause shaft 0 to worksimultaneously with that of shaft 0. It is not desired to limit the invention to the exact construction shown as the same may be modified in many particulars without departing from the spirit of my invention. 7 Applicant is aware that many mechanical devices haveheretofore been made for transmitting and regulating speed. They, however, have been constructed of many 'loose parts which objection-is overcome .by'the simplicity of construction as disclosed by applicants invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is: I v v 1. In a device for regulating speed, the combination consisting of the rotatable shaft provided with a keyway, the pair of slidable hubs mounted thereon, the ends facing each other provided with radially arranged arms inclined forwardly, the pivoted swinging levers, each havin. one of its ends connected with the sleeve engaging with the 'beltor cable. Y

slidable hubs, the obliquely arranged cross bar having its ends loosely connected with the aforesaid 'pivoted levers at relatively opposite sides of their pivots, and the controlling rod connected withthe end-fofone-q' of the said pivoted levers, the whole working in unison with the second pair dissimilar 7 formed hubs by .means 'of ith'e continuous 2. In a device for transmitting and regu! lating speed for motors, the combination with slidable hubs, mounted in pairs provided with radially arran ed arms inclined toward the opposite hub, t e pivoted swinging levers, each having its ends loosely connected with thenon-rotatable sleeve, .the latter swiveled to the outer end oi the slidable hubs, the obliquely arranged connecting. bar having its ends pivoted to the piv- 'oted swinging levers at relatively opposite sides of their pivots aforesaid, th'e'controlling or operating rod connected with the extension of one of the pivoted swinging levers and the continuous belt engaging the inclined arms of the hubs aforesaid.

. Signed at the city of Florence, Kingdom of Italy, this 25th day of July A D., 1918. GARMELO SOLLIMA. Witnesses:

FREDERICK W. B'ULDROVY, S. BLANDIN. 

